<template>
  <div>
    <!-- 导航区域 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
       <el-breadcrumb-item :to="{path:'/home'}">首页</el-breadcrumb-item>
       <el-breadcrumb-item>商品管理</el-breadcrumb-item>
       <el-breadcrumb-item>商品列表</el-breadcrumb-item>
    </el-breadcrumb>

    <!-- 卡片视图区域 -->
    <el-card>
        <el-row>
            <el-col :span="8">
                <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getGoodsList">
                    <el-button slot="append" icon="el-icon-search" @click="getGoodsList"></el-button>
                </el-input>
            </el-col>
            <el-col :span="4">
                <el-button class="btn" type="primary" @click="goAddpage">添加商品</el-button>
            </el-col>
        </el-row>

        <!-- table表格区域 -->
        <el-table :data="goodslist" border stripe>
            <el-table-column type="index"></el-table-column>
            <el-table-column label="商品名称" prop="goods_name"></el-table-column>
            <el-table-column label="商品价格(元)" prop="goods_price" width="95px"></el-table-column>
            <el-table-column label="商品重量" prop="goods_weight" width="70px"></el-table-column>
            <el-table-column label="创建时间" props="add_time" width="140px">
                <template slot-scope="scope">{{scope.row.add_time|dateFormat}}</template>
            </el-table-column>
            <el-table-column label="操作" width="130px">
                <template slot-scope="scope">
                   <el-button type="primary" icon="el-icon-edit" size="mini"></el-button>
                   <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeById(scope.row.goods_id)"></el-button>
                </template>
            </el-table-column>
        </el-table>

        <!-- 分页区域 -->
        <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum" :page-sizes="[5,10,15,20]" :page-size="queryInfo.pagesize" layout="total,sizes,prev,pager,next,jumper" :total="total" background></el-pagination>
    </el-card>

  </div>
</template>

<script>
export default {
    data(){
        return{
            // 查询参数对象
            queryInfo:{
                query:'',
                pagenum:1,
                pagesize:10
            },
            // 商品列表
            goodslist:[],
            // 总数据条数
            total:0
        }
    },
    created(){
        // 获取所有的商品列表
        this.getGoodsList()
    },
    methods:{
        // 根据分页获取对应的商品列表
        async getGoodsList(){
            // {data:res}解构赋值
           const {data:res} = await this.$http.get('goods',{
               params:this.queryInfo
           })
           if(res.meta.status!==200){
               return this.$message.error('获取商品列表失败')
           }
           this.$message.success('获取商品列表成功')
           console.log(res.data)
           this.goodslist=res.data.goods
           this.total=res.data.total
        },
        handleSizeChange(newSize){
            this.queryInfo.pagesize=newSize
            this.getGoodsList()
        },
        // 页码发生变化
        handleCurrentChange(newPage){
            this.queryInfo.pagenum=newPage
            this.getGoodsList()
        },
        async removeById(id){
            const confirmResult= await this.$confirm('此操作将永久删除该商品，是否继续？','提示',
            {
                confirmButtonText:'确定',
                cancelButtonText:'取消',
                type:'warning'
            }).catch(err=>err)
            if(confirmResult!=='confirm'){
                return this.$message.info('已经取消删除')
            }
            const {data:res} = await this.$http.delete(`goods/${id}`)
            if(res.meta.status!==200){
                return this.$message.error('删除失败')
            }
            this.$message.success('删除成功')
            // 刷新列表
            this.getGoodsList()
        },
        goAddpage(){
            this.$router.push('/goods/add')
        }
    }
}
</script>

<style lang="less" scoped>
.btn{
    margin-left: 25px;
}
</style>
